Dominant vs Recessive
Heterozygous vs Homozygous
Punnett Squares and Pedigrees
Genotype vs Phenotype
Meiosis vs Mitosis
100
A trait shows up only when 2 genes for it are present because it can be masked or hidden by another gene. It is-
What is recessive?
100
Which of the following describes an organism that has a genotype of Bb?
What is Heterozygous?
100
A man heterozygous for blood type A mates with a woman heterozygous for blood type B. The chance that their first child will have O blood is
What is 1/4 or 25%?
100
You can tell this by looking at someone's PHysical appearance
What is a PHenotype?
100
What phase of MEiosis is represented above?
What is Anaphase II?
200
A trait only needs 1 gene to be expressed and to mask the other gene. It is -
What is dominant?
200
What best describes these alleles - EE?
What is homozygous?
200
In humans, brown eye color is a dominant allele to blue eye color. Draw and solve the Punnett square crossing two heterozygous brown-eyed parents?
200
This is made of the 2 alleles or genes for a trait
What is a genotype?
200
During meiosis in prophase I, homologous chromosomes can exchange DNA in a process called
What is crossing over?
300
This is represented by a lower case letter
What is recessive?
300
Two alleles that are the same are described to be (ex: EE or ee)
What are homozygous?
300
In a cross between Rr and Rr, what is the probability of the offspring showing a recessive trait?
What is 1/4 or 25%?
300
According to the pedigree, what genotypes would the parents have?
What are Ee and Ee?
300
Unlike miTosis, MEiosis produces
What are 4 haploid cells?
400
This is represented by an upper case letter
What is dominant
400
Two have 2 different versions of a gene can be described as (ex: Ee or Bb)
What is heterozygous?
400
In snapdragons, the combined expression of both alleles for flower color produces a new phenotype that is pink. This illustrates incomplete dominance. What would be the correct product from a cross between two heterozygous pink snapdragons?
What is 1 red, 2 pink, and 1 white?
400
In the pea plant, round seeds (R) are dominant over wrinkled seeds (r). Predict the phenotypic ratio of a cross between a homozygous round plant with a homozygous wrinkled plant.
What is round plants?
400
What process produces body cells, and what produces gametes?
What is Mitosis for body cells and Meiosis for gametes?
500
These traits are weaker.
What are recessive?
500
In domestic cats, the gene for Tabby stripes (T) is dominant over the gene for no stripes (t). If you had a Tabby cat and wanted to know if the cat was homozygous or heterozygous, what type of cat could you breed your Tabby with to prove its genotype?
What is no stripes?
500
In Dachshund dogs, short hair is dominant (S) and long hair is recessive (s). How would you determine if a short haired Dachshund is homozygous dominant (SS) or heterozygous dominant (Ss)?
What is cross it with a long haired Dachshund?
500
Female cattle that have white coats are crossed with male cattle that have red coats. Both male and female offspring have roan coats, which are coats with both red hairs and white hairs. What best describes the genetics of coat color in the cattle - incomplete dominance or codominance?
What is red and white are codominant?
500
If the somatic cells of the sample organism had 24 chromosomes, how many chromosomes will each gamete contain?
What are 12?